package com.sun.springboot_mq1.config;

import org.springframework.amqp.core.*;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

/** 队列 TTL配置
 * @author shkstart
 * @create 2021-10-24 21:47
 */
@Configuration
public class TtlQueueConfig {
    public static final  String X_EXCHANGE="X";
    public static final  String QUEUE_A="QA";
    public static final  String QUEUE_B="QB";
    public static final String Y_DEAD_LETTER_EXCHANGE = "Y";
    public static final String DEAD_LETTER_QUEUE = "QD";

    //声明XExchange
    @Bean("xExchange")
    public DirectExchange xExchange(){
        return new DirectExchange(X_EXCHANGE);
    }
    //声明yExchange
    @Bean("yExchange")
    public DirectExchange yExchange(){
        return new DirectExchange(Y_DEAD_LETTER_EXCHANGE);
    }
    // 声明队列 A ttl 为 10s 并绑定到对应的死信交换机
    @Bean("queueA")
    public Queue queueA(){
        Map<String,Object> map=new HashMap<>(3);
        // 声明当前队列绑定的死信交换机
        map.put("x-dead-letter-exchange",Y_DEAD_LETTER_EXCHANGE);
        // 声明当前队列的死信路由 key
        map.put("x-dead-letter-routing-key","YD");
        // 声明队列的 TTL
        map.put("x-message-ttl",10000);
        return QueueBuilder.durable(QUEUE_A).withArguments(map).build();
    }
    // 声明队列 A 绑定 X 交换机
    @Bean
    public Binding queueaBindingX(@Qualifier("queueA") Queue queueA,@Qualifier("xExchange")DirectExchange xExchange ){
        return BindingBuilder.bind(queueA).to(xExchange).with("XA");
    }
    // 声明队列 B ttl 为 40s 并绑定到对应的死信交换机
    @Bean("queueB")
    public Queue queueB(){
        Map<String,Object> map=new HashMap<>(3);
        // 声明当前队列绑定的死信交换机
        map.put("x-dead-letter-exchange",Y_DEAD_LETTER_EXCHANGE);
        // 声明当前队列的死信路由 key
        map.put("x-dead-letter-routing-key","YD");
        // 声明队列的 TTL
        map.put("x-message-ttl",40000);
        return QueueBuilder.durable(QUEUE_B).withArguments(map).build();
    }
    // 声明队列 B 绑定 X 交换机
    @Bean
    public Binding queuebBindingX(@Qualifier("queueB") Queue queueB,@Qualifier("xExchange")DirectExchange xExchange ){
        return BindingBuilder.bind(queueB).to(xExchange).with("XB");
    }
    // 声明死信队列 QD
    @Bean("queueD")
    public Queue queueD(){
        return new Queue(DEAD_LETTER_QUEUE);
    }
    // 声明死信队列 QD 绑定关系
    @Bean
    public Binding queuedBindingY(@Qualifier("queueD") Queue queueD,@Qualifier("yExchange")DirectExchange yExchange ){
        return BindingBuilder.bind(queueD).to(yExchange).with("YD");
    }

}
